1B-Quiz-5-key

1B-Quiz-5-key - Name Keir Quiz 5 - Solubility Equilibria 1)...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Name Keir Quiz 5 - Solubility Equilibria 1) A solution is made 0.100 M in each of the following: sodium sulfate, ammonium carbonate, zinc nitrate and potassium hydroxide. What preeipitate{s) will form if any? 2-n (mole)! z... co3 (s) 2) A precipitate forms when a small amount of ammonia is added to a solution of C0pper{ll) sulfate. As more ammonia is added, the precipitate dissolves. a} What is the precipitate? Cu Coax Cs) b) Write a net ionic equation describing how the precipitate forms. Cfthm + 7‘qu (:9 + auto 03 fl CuCoH)a(53 + Quit—t: (.15 c) Write a net ionic equation describing how the precipitate dissolves. Cutmfiztcb + Roasts?) «Pi Camilaf'oig + 7.097(th 3} What is the solubility of BaSO4 in a solution of Ba(OH)2 that has a pH of 13.000? The KSP for BaSO4 is 1.1 x 10-10. -|.CJ¢10 Pudyooo => Pout 21.000 =7 fan-'1: lo : 0.1mm _ M on“ O 100 cl (mad 3&9“):- x Mo\ ER.“ -: 0.0500M Equ- L am\ on“ mt Emanx L Conn-Mk) IOU “9-: got-11(th + goal-(‘3‘) ‘ " m X (0.05004: *3 Kg? = [M“1ESOH"] 3:) lelD—lo = (0.0500 “0(K5 It. NEGL—tGlRLE Ll RUDth : (chosocy (x) 4) Concentrated solutions of 21102, NiCIz, and MnCl2 are added to a buffer solution, so that the concentration of each salt is 0.800 M. If the solution has a pH of 8.00, which metal hydroxides (if any) will precipitate? KSP Zn(OH)2 1.2 x 10-17 Ni(OI-I)2 2.0210—15 Mn(OH)2 1.9x10-13 as. {wow-1 ‘ Gse" (b.8w)(t.o x169): = “3,0 x to” ‘3 2 F01?— hLL METAL-S I. k5? < mmz- k5? 4— Q9? M“ (9‘62. K3? 4 0;? Znsi mus. 191,9 2 ALL, wt LL. PRELUPI TATE- 5} A solution that is 0.010 M zinc nitrate, 1.0 x “10—4 M manganesefll) nitrate, and 0.050 M leadfll) nitrate, is made 0.10 M H25 and buffered at pH 1.0. What if any precipitates will form? Ksp (not Kspa) ZnS 1.6 x 1H3 o. m E MnS 7.0x10‘16 7 o x105- PbS 7.0 x 10—29 ’ - g, 7-0 K {O Q : Y'ZA“]E“19~1 _ (041030340) m * [fiafl‘ji (0.13 1 _ (i.oxio'q)(o.to) J; as» ' 1 = l X \D (0.1) (0.050 0.10 Qsm '- )( 3 ;— 0.5 Lew “seq (ks-p '. 1.0x to“) 1P“: \-0 =3? 84*}: OJ M Q5?» 4 Km; Clam ‘7 Ksm ?REL‘PI 6) Using the following Ksp values: KSP Mg(Ol-I)2 1.3 x 10-11 Ca(OH)2 5.5 x 1&6 a) What is the pH of a saturated solution of Mg(OH)2 and Ca(Ol-l)2? Hint: the solution will be electrically neutTal. '1 7‘ .3 " K5? 2 (“1+1 [Gt-[’1 => I: 1 Kai: '-‘ {cfifili‘DH—jl =2} tcx'ar—l 5 5.?xlo-E tour] 1 mumw‘mnurw E’H'] =EM}°*](+23 +Cq2+j (+13 = (LEMON (2)) + 5-Sxtoht(13) -5‘ [our]: Gar)?- I. («It '. K5? = {Miltopr => [marl ; K9? : '5-“10... [mt]; Co. 021)?” um.— fqarj = 0.011 M MOTKJEZ no “nus CA4€ITH€ 1M CAM BE CALCUL’HT’ED 3% ME-G—LELTHQCF Mfifimflz . ...
View Full Document

This note was uploaded on 02/12/2012 for the course CHEM 1 taught by Professor Deceutt during the Spring '11 term at Santa Monica.

Page1 / 3

1B-Quiz-5-key - Name Keir Quiz 5 - Solubility Equilibria 1)...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online